Gibbing and tying means for press frames



May 22, 134% M. R. HATCH 1,959,865

GIBBING AND TYING MEANS FOR PRESS FRAMES Filed July 25, 1932 5Sheets-Sheet l 3 Sheets-Sheet 2 M K W @410; Y- @(JJM M. R. HATCH GIBBINGAND TYING MEANS FOR PRESS FRAMES Filed July 25, 1932 May 22, 1934.

May 22, 1934.

M. R. HATCH GIBBING AND TYING MEANS FOR PRESS FRAMES.

Filed July 25, 1932 3 Sheets-Sheet 3 Fig.4

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o 1 .6 7 mm awe/HM mM m Q Patmited May 22, 1934 STATES PAENT QFFEGIBBING AND TYING MEANS FOR PRESS FRAMES Application July 25, 1932,Serial No. 624,632

7 Claims.

This invention relates to frames for power presses and particularly tothe gibbing and the tying means which connects the sides of the .frameand guides the slide in its reciprocatory movement.

The object of the invention is to provide a new and improvedconstruction whereby the several parts of the frame are held rigid andthe slide accurately guided. The relation between the frame and thegibbing, and the arrangement of the slideway are simplified, and theadjustment of the gibbing to provide an accurate guide for the slide isfacilitated.

The invention in its preferred form will be more specifically describedwith reference to the a accompanying drawings, in which:

Fig. 1 is a front elevation of a press constructed according to theinvention, parts being broken away to show the interior construction;

Fig. 2 is a section taken substantially on the line 22 of Fig. 1;

Fig. 3 is a section taken on the line 3-3 of Fig. 2;

Fig. 4 is a plan View of the press with a part of the slideway shown insection;

Fig. 5 is a perspective View of one of the tapered gibs used for guidingthe upper part of the slide.

Fig. 6 is a perspective view of a spacing block adapted to be used inconnection with the gib shown in Fig. 5;

Fig. 7 is an enlarged detail view of one corner of the slide associatedwith the gibbing illustrated in Figs. 5 and 6;

Fig. 8 is a perspective view of one of the tapered gibs used in guidingthe lower part of the slide;

Fig. 9 is a perspective view of a spacing block adapted to be used inconnection with the gib shown in Fig. 8;

Fig. 10 is an enlarged detail view of one corner of the slide associatedwith the gibbing shown in Figs. "8 and 9.

As illustrated in the drawings, the invention is associated with a powerpress having a frame with uprights connected at the top by a crown 16,and held rigidly in assembled relation by tie rods 17. The power shaft18 is journaled in the uprights 15 and is provided with an eccentric 19which reciprocates the slide 20 through the medium of a suitableconnection 21 as the shaft rotates.

The uprights 15 are connected at the front side of the machine by afront gib 22 which is rigidly secured by numerous machine screws 23. Thegib 22 extends from the lower end of the slideway to a point above thecenter line of the crankshaft and is dished outwardly to provide spacefor the slide. In order to insure the utmost rigidity, a tongue andgroove joint 24 is preferably provided between the front gib and thesides of the frame. The sides 25 of this gib extend inwardly within theuprights 15 and terminate in straight vertical seats 26 to whichfinished bronze wearing strips 2'7 are secured.

The slide 20 has at its front side an upward extension 28 disposedwithin the gib 22 and extending above the crankshaft and is formed withstraight guide flanges 29 adapted to move up and down in contact withthe wear strips 27. Behind each flange 29, a tapered bronze finished gib30 is mounted by means of a head 31 which is secured by means of amachine screw 33 to a seat 32 formed on the crown 16, a suitable spacingblock 34 being inserted beneath the head 31 to properly fix the positionof the gib. It will be noted that the strips 27 extend the entire lengthof the slideway and are inclined at an angle of substantially 45 to thefaces of the slide, so that by a proper adjustment of the gibs 30, andof similar gibs at the lower end of the slide, an accurate take-up forthe guideway is insured without any additional lateral adjustment.

Opposed to the lower ends of the strips 27, on the opposite side of theslide, there are a pair of tapered bronze finished gibs 36 similar tothe gibs 30 and each provided with a head 37 which is secured to a seat38 projecting from the crown 16, by means of a machine screw 39, asuitable spacing block 40 being interposed to accurately fix theposition of the gib.

From the foregoing description, it will be seen that the bronze facingstrips 27 provide straight bearing surfaces for one side of the slidethroughout its length, including the extension 28. The tapered gibs 36and 30 provide opposed bearing surfaces for the opposite side of theslide and the extension 28 respectively. Since the faces of the strips27 are disposed in planes which are inclined rearwardly and outwardly atangles of substantially 45 to the face of the slide, it is necessary touse the tapered gibs only on one side of the slide in order to insure anaccurate take-up for the slideway.

It is, of course, understood that the invention is not limited to thespecific structure herein shown and described, but includes all suchmodifications as may fall within the scope of the appended claims.

What I claim is:--

1. In a power press frame having a slideway, the combination with aframe having spaced uprights, of a gib connecting said uprights at oneside of the slideway and having a continuous interlocking connectionwith the frame from top to bottom of the slideway and the gib, and othergibs at the opposite side of the slide and opposed to the firstmentioned gib, said gibs being provided with wearing surfaces betweenwhich the slide is guided.

2. In a power press frame having a slideway, the combination with aframe having spaced uprights, of a gib connecting said uprights at oneside of the slideway and having wearing strips extending from top tobottom of the slideway, tapered gibs insertable in opposed relation tothe first mentioned gib to provide surfaces between which the slide isguided, and seats on the frame to which said tapered gibs are secured.

3. In a power press frame having a slideway, the combination with aframe having spaced uprights, of a gib connecting said uprights at oneside of the slideway and having bearing surfaces disposed in verticalplanes at the corners of the slideway at oblique angles tosaid side, andtapered gibs insertable in opposed relation to the first mentioned giband having bearing surfaces which cooperate with the bearing surfaces ofthe first mentioned gib to constitute a guideway for the slide.

4. In a power press frame having a slideway, the combination with aframe having spaced uprights, of a gib connecting said uprights at oneside of the slideway, a plurality of tapered gibs, means for securingeach of the tapered gibs in predetermined relation to the firstmentioned gib, the first mentioned gib having bearing surfaces disposedin vertical planes at the corners of the slideway at oblique angles tothe side of the slideway between them, whereby fitting of the taperedgibs alone will fit the slideway to the slide.

5. In a power press, the combination with a built-up frame having spaceduprights and a slide reciprocable between said uprights, said slidehaving an upward extension at one side, of a gib connecting saiduprights and having wearing strips extending continuously from top tobottom of the slideway adjacent said extension, gibs opposed to thelower portions of said wearing strips and cooperating therewith toprovide guides for the slide, and gibs opposed to the upper portions ofsaid wearing strips and cooperating therewith to provide guides for saidexten- 6. In a power press, the combination with a built-up frame havingspaced uprights and a slide reciprocable between said uprights, saidslide having an upward extension at one side, of a gib connecting saiduprights and having bearing surfaces disposed in vertical planes atoblique angles to said side, gibs opposed to the lower portions of saidbearing surfaces and cooperating therewith to provide guides for theslide, and gibs opposed to the upper portions of said bearing surfacesto form guides, said extension being formed with ribs engaging the lastmentioned 100 guides.

7. In a power press, the combination with a built-up frame having spaceduprights and a slide reciprocable between said uprights. said slidehaving an upward extension at one side, of 105 a gib connecting saiduprights in front of the slide, gibs behind the slide in opposedrelation to the lower portion of the front gib, said front gib havingrearwardly and outwardly inclined bearing surfaces at the front cornersof the slideilfl way, whereby fitting of the rear gibs alone will fitthe slideway to the slide.

MEREDITH R. HATCH.

